package org.chenwei.week10;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author chenwei
 */
public class Register extends HttpServlet
{    
    
    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException
    {
        HttpSession session = request.getSession();
        DBManager dbmanager = (DBManager) session.getAttribute("dbmanager");
        Student student = new Student();
        
        student.setId(Integer.parseInt(request.getParameter("id")));
        student.setName(request.getParameter("name"));
        student.setNationality(request.getParameter("nationality"));
        student.setGraduate(request.getParameter("graduate"));
        student.setDepartment(request.getParameter("department"));
        student.setEmail(request.getParameter("email"));
        student.setPhone(request.getParameter("phone"));
        
        dbmanager.register(student);
        
        List propertyTextList = (List) session.getAttribute("propertyTextList");
        List propertyTextfieldList = (List) session.getAttribute("propertyTextfieldList");
        
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet " + request.getContextPath() + "</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Successfully register a student with following information!</h1><br />");
            out.println("<table>");
            for (int i = 0; i < propertyTextfieldList.size(); i++) {
                String propertyText = (String) propertyTextList.get(i);
                String propertyTextfield = (String) propertyTextfieldList.get(i);
                
                out.println("<tr>");
                out.println("<td style=\"font-weight:bold;\">");
                out.println(propertyText + ": ");
                out.println("</td>");
                out.println("<td>");
                out.println(request.getParameter(propertyTextfield));
                out.println("</td>");
                out.println("</tr>");
            }
            out.println("<tr>");
            out.println("<td>");
            out.println("<button onclick=\"history.go(-1);return true;\">Back</button>");
            out.println("</td>");
            out.println("<td>");
            out.println("<button onclick=\"window.location='/students';\">Home</button>");
            out.println("</td>");
            out.println("</tr>");
            out.println("</table>");
            out.println("</body>");
            out.println("</html>");
        }
        finally {            
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException
    {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException
    {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo()
    {
        return "Short description";
    }// </editor-fold>
}
